Ryman, R., Colaizzi, V., & Schubert, K. (2009). Robert Ryman - Critical texts since 1967: Robert Ryman ; edited by Vittorio Colaizzi and Karsten Schubert. Ridinghouse.
Citace podle Chicago (17th ed.)Ryman, Robert, Vittorio Colaizzi, a Karsten Schubert. Robert Ryman - Critical Texts Since 1967: Robert Ryman ; Edited by Vittorio Colaizzi and Karsten Schubert. London: Ridinghouse, 2009.
Citace podle MLA (8th ed.)Ryman, Robert, et al. Robert Ryman - Critical Texts Since 1967: Robert Ryman ; Edited by Vittorio Colaizzi and Karsten Schubert. Ridinghouse, 2009.
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